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Finding the Fourth Proportional to 113,495.70, 170,243.55 and 104,966.40

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Solution

The fourth proportional to 113,495.70, 170,243.55 and 104,966.40 is: 157,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,495.70 : 170,243.55 = 104,966.40 : x
  2. Step 2: Convert to fraction form
    113,495.70/170,243.55 = 104,966.40/x
  3. Step 3: Cross multiply
    113,495.70x = 170,243.55 × 104,966.40
  4. Step 4: Simplify right side
    113,495.70x = 17,869,852,566.72
  5. Step 5: Solve for x
    x = 17,869,852,566.72/113,495.70
  6. Step 6: Final answer
    x = 157,449.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.